Said greenleai



F. BILLINGS AND R. P. GREENLEAF.

LOADING MACHINE.

APPLICATION FILED NOV-12.1917.

Patented Nov. 18, 1919.

5 SHEETSSHEET I.

F. BILLING-S AND R. P. GHEENLEAF.

LOADING MACHINE.

APPLICATION FILED NOV. I2. I9I7.

Patented Nov. 18, 1919. 4

IIlllI-ll F. BILLINGS AND R. P. GREENLEAF.

LOADING MACHINE.

APPLICATION FILED NOV. 12. 1917.

Patented Nov. 18, 1919.

5 SHEETSSHEEI' 3.

LSQQAT'YD F.-BILL|NGS AND R. P. GREENLEAF.

LOADING MACHINE. APPLICATION FILED NOV. 12. I917.

Patented Nov. 18, 1919.

5 SHEETS-SHEET 4.

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FEM/676% a? F. BILLINGS AND R. P. GREENLEAF.

LOADING MACHINE.

APPLICATION FILED NOV. 12. 19!].

1,32Q,%?7u Patented Nov. 18, 1919.

5 SHEETS-SHEET 5- UNITE STATES PATENT @FFICE.

FRANK BILLINGS AND ROBERT P. GREENLEAF, or CLEVELAND, 01110; sen) GREENILEAF 'ASSIGNOR TO SAID IBILLINGS.

LOADING-MACHINE.

To all whom it may concern: l

Be it known that we, FRANK BmLINos and 'RoBERT P..GREEN LEAF, citizens of the United States, and residents, respectively, of Cleveland,'inthe county of Cuyahoga' and State of. Ohio, and Cleveland, in the county of Cuyahoga and State of Ohio,- have invented acert'ain new-and useful Improvement in Loading-Machines, ofwhichth'e'following is a full, clear, and exact description.

This invention relates to loading machines, and has for-its chief object to provide an efficient loading machine adapted particularly for use in mines where the head room of thespace in which the machine is working is limited.

More p'articularly the invention aims to provide a loading machine of thetype which includes a material conveyingelement such as a bucket or shovel, whichisdesigned to;

be filled with material at the front of the machine and then carried rearwardly over the-machine and dumped, the parts being so constructed and operated that as the con- 1 veying element is being carried or moved over the machine, either rearwardl whilecarrying its load, or forwardly a er the load hasbeen discharged, itwill at no time a project beyond a given distancexfrom the 30 mine floor or track, which distance is practically a minimum for a machine of thls type, thus enabling the machine tobe used in-tunnels or'drifts of mines wherein the coal or ore is in thin veins.

- Still further the invention aims to ac-' complish the above "objects with operating mechanism which'is simplein its construction and operation.

Our invention may be briefly summarized as consisting-1n certain novel details of construction and combinations and arrangemeans ofparts which will be described in the specification and set forth'in the appended claims. 1 v

In the accompanying sheets of. drawings wherein we have. illustrated the preferred embodiment of our invention, Figure 1' is aside elevation of the machine showing by dotted lines, different positions of the shovel in its courseof travel over the machine; F ig. 2 is a similar view on a reduced scale showing by dotted lines the. extreme for ward position of the shovel'at the end of thefilling stroke and in addition the position of the shovel and the tilting bottom Speciflcationof Letters Patent. 7 P t t 15, 1919, Application filed November 12, 1917. Serial No. 201,680.

thereof 'at'the extreme end of its rearward stroke, or while the material is being dis charged therefrom; Fig. 3 is a rear end view of the machine on the same scale as Fig. 2; Fig. 4 is a side view of the so-called trolley forming a part of the shifting mechanism for the material conveying element; Fig. 5 is a top plan view of the machine, parts being broken away; Fig-6 is a transverse sectional view substantially along the line-66 of Fig. 1,'looking'rearwardly,the

shovel beinghere-shown in elevated posinon; Fig. 7'is a' view similar 'to Fig.2, but

will be flanged, as here shown', and run along the rails of a track indicated conventiona'lly at 12. Supported on this frame 10 so is. a horizontally movable platform .or socalled turntable 13, which is supported on the frame 10 through the medium of rollers 14 which enable the turntable and all the parts supported byit to, be turned horizontally about an axis-which willTbelnear the rear end of the machine so as to properlyposition the front working end of the machine with reference to the material to be loaded.

- The material conveying element is here shown in the form of a shovel or bucket 15 which is designed to bethrustforwardly so as to scoop up a load of material and then to be retracted before being conveyed rearwardly over the machine to the dumping point. For the'purpose of thrusting the shovel forwardly and thenretracting it, .we

two parallel sidemembe'rs'lfi connected together by transverse rods 17, or other suits employ a reciprocating'device in the form I of a ram, which as here shown, conslsts of Y forward edges, peculiarly curved angles 16,

constituting cams, and having along their lower edges onthe exterior thereof, angle -memb'ers 16 with racks 16 the rack teeth extending from the rear end of the ram forwardly "for about two-thirdsthe (if the latter. "The forward end of rack'l6 is indicated in Figs. 1 and -7 by the shortdo't ted line A. This rainfis supported-for reciprocating movement in part by stationary track rails, 18 which are mounted in fixed position just insid the side members of the; -ram,.and are engaged by rollers 18 carried bythe rear end of the rain in posimembersof the-ram (seeFig. 6).

tion. t o -zengage the' upper and lower faces I ofthe rails 18. The ram is supported at the front of; the machine by rollers 19 which are stationary'as far as rectilinear movement 1s concerned, andengage rails 20 'se'- cured to the inner lower sides of the side For the' purpose of shifting the shovel forwardly and rearwardly over the machine,

-. a trolley or carriage'is provided, this being casting 21 totheother through slots 16 in I the sidemembersof the'ram, the length of the slots shown particularly in Fig. 1 indicating substantially: 'thelength of the ing on the upper surfaces of the angle mem-' movement; of the trolley onthe ram. This trolley is supported and guided by rollers 2 1 (see particularly Fig. 6) journaled on the trolleyfthese rollers engaging and roll bers 16; which, as before stated, aresecured to the lower outer side portions of the side I members 16 oftheram.

The lower edges of the side. castings 21 of the trolley "are provided with rack teeth 21' as illustrated in Fig. 4.

The shovel 15 .is connected to this trolley by two telescoping arms 22, each consisting of a forward portion 22 carrying a block 22", and a rearward portion 22 having a slot which receives the block with a sliding action which will allow the arms to be ex- 'tended or contracted. The forwardends of the parts 22 'of the shovel shifting arms are pivotally connected at 22 to the sides .of the shovel or bucket 15, and the rear ends of the companion parts 22 of the arms are I r pivotallyconnected to the trolley, the arm members 22 being in thiscasejournaled on the .rear roller's'upporting studs 21 carried by the side castings 2-1 of the trolley (see Fig. 6).. At their rear ends the members ing arms a movement of rotation at the same time that they are given a movement of translation by the movement of the trolley.. When the shovel is being swung back over themachine to its lower-forward position, the arms swing downwardly until they engage adjustable stops 25 carried by brackets 26 secured .to the forward part of the side members-'of-the ram as -best'shown in Fig. 1, these stops holding the shovel and shovel supporting arms in fixed position with respect to the ram during the forward filling and retracting qnovements, and determining the angularity 'ofthe arms and the'depth .of digging movements as will be apparent.

so as to give the shovel. and shovel support- The shovel 15 as here shown is provided with a bottom which in this case is the digf ging part ofthe shovel, with sides, and with a rear wall-15 which ispivoted 'at 15 to what is normally the upper rear 'corners of the shovel so as to swlng'inwardly; in the v manner hereinafter explained. This rear wall 15 has, securedto it a member ,15 having" a rearwardly extending hook-like portion-15 which is designed to hook over a cross shaft 27 extending between the sliding blocks 22 of the forward members 22 of the shovel shifting arms 22, (see particu-. larly Fig. 5). This shaft 27 is provided with rollers 28 which are-adapted to roll over the upper cam surfaces of the angles the inner ends of, short studs 2l -extending transversely throughthe side castings 21 of 16*, which as before stated, extend along the-upper and forward edges of the side members of the ram. 1

By reason of the pivotal, connection between the shovel and the forward arm mem:

bers 22, and the engagement of the hook 15 'over' the cross shaft 27, the shovel held rigidly between the arm members 22* until-the hook is disengaged from the cross shaftjust before the shovel reaches the rear end of its stroke at the'upper'rear end of the machine. e

To shift the ram, trolley and shovel relative to the turntable, and to shift the trolley and shovel relative to the ram, different motive devices and power transmitting mechanisms may be employed, and while we do not wish to be confined to the construction and arrangement here shown," we prefer to em?- ploy for-these purposes, that is, to fill and empty the shovel and thereby move the shovel through its complete cycleof opera tion, a single motor 30, which ashere shown is mounted at the rear .end of the turntable between the side members of the ram. We preferto'use-for this purpose an electric motor, although a motor of any other suit-" able type may beemployed- The'motoris provided. with a forwardly projecting shaft 31, which through a worm 32 and a worm wheel 33 (see Fig. 6) drives a transverse shaft 34 supported in suitable bearings 35 on the turntable near the forward portion thereof. This shaft 34 has secured explained. I 1

to its outer ends justbeyond and alongside of the turntable, pinions 36, each with a face wide enough to engage the two racks 16 and 21, the former bcingcarried by the ram and the other .by a trolley as before The parts so far-described, operate as follows: At the beginning of the filling stroke of the shovel the parts are in the position shown in Fig. 1 with the cross'mem'ber of the trolley at the forward ends of theslots 16 in the side members of the ram, and with the pinions 36 about to leave the racks 21 of the trolley and to engage the racks 16 of the ram. If the motor is nowfstarted, through the shaft 31, worm gearing 32 and 33, and shaft 34 it will rotate the pinions .36, which through their engagement with the racks just mentioned, move the ram, trolley, shovel and shovel supporting arms forward;

trolley. At this point the gear segments 23 at the pivotal axis of the shovel arms are in position to engage the stationary racks 24, and the rollers 28 on the cross shaft .27 engage the cam surfaces of the angles 16* of the ram, asshown in Fig. LL There fore the continued rotation of thepinions shifts the trolley rearwardly relative to the ram as soon as the movement of the ram ceases, and at the same time through the en-]' gagement ofthe gear segments 23 with the racks 24, the shovel and shovel supporting arms are swung rearwafrdly, giving the loaded or filled shovel its rearward movement of translation and movement'of rotation previously described, and causing the shovel to travel from the forward end of the machine up over the machine to the rear end thereof. In passing through this path of movement the rollers 28 travel over the curved cam surface of the angles 16", allowing the shovel supporting arms to telescope so that a'tno position of the shovel will any part of the latter project a considerable distance above the machine, these cam surfaces being so designed that as the shovel is traveling rearwardly and is being gradually turned, the'highest point of the shovel travels through a straight line or plane parallel to the mine floor or track on which the machine is run, this plane being indicated by the dotted'line B of Fig. 2. The distance stantially the dotted line position shown at the upper right hand "corner of Fig. 2, with.

between this plane indicated by the line B and therails of the track' 'or surface over which the machine is designed to run is no greater than the extreme height of the machine over which the shovel-travels and the maximum front and rear dimension of the shovel.

As' the shovel nears the rear end of T rearward swinging stroke, the hook 15 on the pivoted rear wall or door of the shovel leaves the cross shaft 27, and the shovel tilts down on fiat horizontal surfaces 37 at the upper. rear end of the machine, with what was formerly the rear wall of the shovel now the bottom wall, engaging these surfaces. Just before the rear end of the stroke'is reached, abutments in the form of rollers '38 carried by the sides of the shovel engage some diagonally disposed upstanding arms 39 mounted on the ends of a rockshaft 40 at the upper rear end of the machine, this rockshaft having one or' more forwardly projecting arms 41 which areybeneath the shovel when sliding rearwardlyover the arms 37. 'The engagement of these rollers 38 with the arms 39 rocks the shaft 40 and elevates the arm or arms LL-and thus shifts or elevates the pivoted bottom wall (normally the rear wall) 15 of the shovel to subthe result that the material will be discharged from the shovel when it reaches the end of its stroke. The material will be discharged into a suitable mine car or other receptacle which will b provided for that purpose at the rear of the machine.

Then the motor will be reversed and the trolley or carriage will be moved forwardly,

this forward movement of the trolley causing the shovel to move forwardly and downwardly to the position shown in 2, the

hook 15 automatically hooking over the cross shaft 27 as before, and as'soon as the shovel and shovel supporting arms reach the position shown in Fig. 1, the rotating pinions 36. leave the trolley racks-21 and'engage the rack .rams 16 and therefore move the parts forwardly to again, fill the shovel. The action previously described will then be repeated. v vHaving described our invention, what we claim is:

- 1. In a loading machine, a frame, a material conveying element, mechanism for moving said element forwardly so asto re.-

ceive a load and then rearwardly over the machine so as to dump the material at the rear thereof. said mechanism comprising a ram adapted to be reciprocated, a trolley movable lengthwise of the ram, swinging means connecting the material conveying element to the trolley and rotary means for reciprocating the ram and shifting the trolley relative to the ram.

2. In a loading machine, a frame, a ma- "terial conveying element, mechanism for terial conveying element, mechanism for moving the same forwardly so as to receive the load and then rearwardly and over the machine to dumping position, said mechanism comprising a ram mounted for forward and rearward reciprocating movement on the frame, a carriage mounted on the ram for forward and rearward'reciprocatjng movement thereof, and telescopic arms connected to the material conveying element and pivotally connected to the carriage.

I. In a loading machine, a frame, a material conveying element, mechanism for moving the same forwardly so as to receive the load and then rearwardly and over the machine to dumping position, said mechanism comprising a ram mounted for forward and rearward reciprocating movement on the frame, a carriage. mounted on the ram for forward and rearward reciprocating movement relative thereto, arms connected to the material conveying element and pivotally connected to the carriage, and

rotary means for reciprocating, the ram, for

shifting the carriage on the ram, and for turning the arms and material conveying element.

5. In a loading machine, a frame, a material conveying element, mechanism for moving the same forwardly so as to receive a load and then rearwardly and over the machine to dumping position, said mechanism comprising a ram mounted for forward and rearward reciprocating movement on the frame, a carriage mounted on the ram for forward and rearward reciprocating movement relative thereto, arms connected to the material conveying elementand pivotally connected to the carriage, and means for reciprocating the ram and then reciprocating the carriage and simultaneously imparting a turning movement to the arms and material conveying element. I

6. In a loading machine, a frame, a malterial conveying element, mechanism for moving the same forwardly so as to receive a load and then rearwardly and over the machine to dumping position, said mechanism comprising a ram mounted for forward and rearward reciprocating movement on 3. In a loading machine, a frame, a m a the frame, a carr'ia ge mountedeonvtheemm, for forward and rearward recipocatin g movement thereof, and arms connectedto the material conveying element and pivotally connected to the carriage, saidarms being composed of telescoping members. i

7. In a loading machine, a. frame, -a'material conveying element, mechanism for moving the same forwardly so as toreceive a load and then rearwardly and over the machine to dumping position, said mechanism comprising a ram mounted for forward and rearward reciprocating movement on the frame, a'carriage mounted on the ram for forward and rearward reciprocatin move ment relative thereto, arms connecte to the material conveying element and pivotally connected to the carriage, said arms being composed of telescoping members, and a cam surface for controlling the telescoping of the arms when the material moving element is being moved over the machine. v

8. In a loading machine, a frame, amaterial moving element in the form of a shovel, mechanism for thrusting the shovel forwardly, for retracting the same and moving the same over the machine to dumping position, said mechanism comprising a ram mounted on the frame for forward and rearward reciprocating movement, a carriage movable on the ram, arms pivotally connecting the shovel to the carriage, a motor, and mechanism. by which said motor reciprocates the ram and the carriage successively.

9. In a loading machine, a frame, a material moving element in the form of a shovel, mechanism for thrusting the shovel forwardly, for retracting the same and moving the same over the machine to dumping position, said mechanism comprising a ram mounted on the frame for forward and rearward reciprocating movement, a carriage movable on the ram, arms pivotally con necting the shovel and the carriage, a motor, and mechanism by which said motor reciprocates the ram and simultaneously reciprocates the carriage and turns the arms.

10. In-a loading machine, a frame, a material moving element in the form of a shovel, mechanism for thrusting the shovel forwardly, forretracting the same and moving the same over the machine to dumping position, said mechanism comprising a ram mounted on the frame for forward and rearward reciprocating movement, a carriage movable on the ram, arms pivotally connecting the shovel and the carriage, motive means, and mechanism by which said motive means reciprocates the ram and carriage and turns the arms, comprising rack and gear driving means between the motive means, ram, carriage and arms.

11. In a loadingmachine, a frame, a material moving element in the form of a shovel, mechanism for thrustingthe shovel forwardly, for retracting the same and moving the same over the machine to dumping position, said mechanism comprising a ram mounted on the frame for forward and rearward reciprocating movement, a carriage movable on the ram, arms pivotally connecting the shovel to the carriage, a motor, and mechanism by which said motor reciprocates the ram and carriage and turns the arms, said mechanism comprising a motor driven gear, racks carried by the ram and carriage respectively and adapted to be engaged by said gear, a rack carried by the frame, and a gear rotatable with the arms and adapted to engage said last named rack.

12. In a loading machine, a frame, a shovel adapted to be filled with material at the front of the machine and to be swung over the machine to dumping position, a ram movable forwardly and rearwardly of the frame, the ram having a runway, a

trolley movable along the runway of the ram, swinging arms connecting the shovel to the trolley, and a single motor for shifting the ram back and forth and for shifting the trolley along the runway of the ram.

13. In a loading machine, a frame, a shovel adapted to be filled with material at the front of the machine and to be swung upwardly and rearwardly over the latter to dumping position, a ram movable forwardly and rearwardly of the frame, a trolley movable relative to the ram, swinging means connecting the shovel to the trolley and adapted to be rotated to swing the shovel over the machine, said swinging means being composed of relatively movable parts,

and means whereby said parts are movedrelatively during the swinging movements of the shovel to increase and decrease the effective length of said parts.

'14. In a loading machine, a frame, a shovel adapted to be filled with material at the front of the machine and to be swung upwardly and rearwardly over the latter to dumping position, a ram movable forwardly and rearwardly of the frame and provided with a trolley runway and with a cam surface, a trolley adapted to be shifted along the runway of the ram, swinging means connecting the shovel to the trolley and adapted to be rotated to swing the shovel over the machine, said swinging means beingcomposed of relatively movable parts by which the effective length of the swinging means may be increased and decreased as the shovel is swung over the machine, said swinging means having a part adapted to travel over the cam surface of the ram to cause such relative movement of said swinging means.

In testimony whereof we hereunto affix our signatures.

FRANK BILLINGS. ROBERT P. GRE'ENLEAF. 

